SLVUC05A November   2020  – July 2022 TPS25750

 

  1.   Read This First
    1.     About This Manual
    2.     Notational Conventions
    3.     Glossary
    4.     Related Documents
    5.     Support Resources
    6.     Trademarks
  2. 1Introduction
    1. 1.1 Introduction
      1. 1.1.1 Purpose and Scope
    2. 1.2 PD Controller Host Interface Description
      1. 1.2.1 Overview
      2. 1.2.2 Register and Field Notation
    3. 1.3 Unique Address Interface
      1. 1.3.1 Unique Address Interface Protocol
      2. 1.3.2 Unique Address Interface Registers
  3. 2Unique Address Interface Register Detailed Descriptions
    1. 2.1  0x03 MODE Register
    2. 2.2  0x0D DEVICE_CAPABILITIES Register
    3. 2.3  0x14 - 0x19 INT_EVENT, INT_MASK, INT_CLEAR Registers
    4. 2.4  0x1A STATUS Register
    5. 2.5  0x26 POWER_PATH_STATUS Register
    6. 2.6  0x29 PORT_CONTROL Register
    7. 2.7  0x2D BOOT_STATUS Register
    8. 2.8  0x30 RX_SOURCE_CAPS Register
    9. 2.9  0x31 RX_SINK_CAPS Register
    10. 2.10 0x32 TX_SOURCE_CAPS Register
    11. 2.11 0x33 TX_SINK_CAPS Register
    12. 2.12 0x34 ACTIVE_CONTRACT_PDO Register
    13. 2.13 0x35 ACTIVE_CONTRACT_RDO Register
    14. 2.14 0x3F POWER_STATUS Register
    15. 2.15 0x40 PD_STATUS Register
    16. 2.16 GPIO Events
    17. 2.17 0x69 TYPEC_STATE Register
    18. 2.18 0x70 SLEEP_CONFIG Register
    19. 2.19 0x72 GPIO_STATUS Register
  4. 34CC Task Detailed Descriptions
    1. 3.1 Overview
    2. 3.2 PD Message Tasks
      1. 3.2.1 'SWSk' - PD PR_Swap to Sink
      2. 3.2.2 'SWSr' - PD PR_Swap to Source
      3. 3.2.3 'SWDF' - PD DR_Swap to DFP
      4. 3.2.4 'SWUF' - PD DR_Swap to UFP
      5. 3.2.5 'GSkC' - PD Get Sink Capabilities
      6. 3.2.6 'GSrC' - PD Get Source Capabilities
      7. 3.2.7 'SSrC' - PD Send Source Capabilities
    3. 3.3 Patch Bundle Update Tasks
      1. 3.3.1 'PBMs' - Start Patch Burst Mode Download Sequence
      2. 3.3.2 'PBMc' - Patch Burst Mode Download Complete
      3. 3.3.3 'PBMe' - End Patch Burst Mode Download Sequence
      4. 3.3.4 Patch Burst Mode Example
      5. 3.3.5 'GO2P' - Go to Patch Mode
    4. 3.4 System Tasks
      1. 3.4.1 'DBfg' - Clear Dead Battery Flag
      2. 3.4.2 'I2Cr' - I2C Read Transaction
      3. 3.4.3 'I2Cw' - I2C Write Transaction
  5. 4User Reference
    1. 4.1 PD Controller Application Customization
    2. 4.2 Loading a Patch Bundle
  6. 5Revision History

3.3.1 'PBMs' - Start Patch Burst Mode Download Sequence

Table 3-9 'PBMs' - Start Patch Burst Download Sequence
DescriptionThe 'PBMs' Task starts the patch loading sequence. This Task initializes the firmware in preparation for a patch bundle load sequence and indicates what the patch bundle will contain.
INPUT DATAXBitNameDescription
Byte 6: Burst Mode Timeout
7:6Reserved
5:0Timeout valueTimeout value for this task. A non-zero value must be used, it is recommended to always use 0x32 in this field (5 seconds) (LSB of 100 ms).
Byte 5: I2C slave for downloading patch.
7Reserved
6:0I2C Slave AddressThe following slave addresses are not valid:
  • 0x00.
  • The I2C1s slave address of any port selected using the ADCINx pins. Refer to data-sheet.
Bytes 0-3: Low Region Binary bundle size in of bytes: [ Byte4, Byte3, Byte2, Byte1]
39:32Byte4 of bundle size
31:24Byte3 of bundle size
23:16Byte2 of bundle size
15:8Byte1 of bundle size
OUTPUT DATAXBitNameDescription
7:0PatchStartStatusStatus of the patch start.
0x00Patch start success.
0x04Invalid bundle size.
0x05Invalid slave address.
0x06Invalid Timeout value.
Task CompletionThe 'PBMs' Task completes after output has a valid PatchStartStatus. If MODE register (0x03) is equal to 'APP ', then this Task will be rejected.
Side EffectsWhen the 'PBMs' is successful, the second slave address will be set to the input value.
Additional InformationThe host can only issue a 'PBMs' Task to the I2Cs port of the PD controller. If the host issues 'PMBs' a second time, then the PD controller ignores the DATAX input, restarts the burst-mode timer, and resets the pointer to the beginning of the patch space in RAM. If the MODE register is 'APP ' indicating that the PD controller is in the APP mode, then it will reject the 'PBMs' Task.